Sidewalk, vault-light, floor-light, and skylight construction.



L. W. MULFORD.

SIDEWALK. VAULT LIGHT FLOOR LIGHT, AND SKYLIGHT CONSTRUCTION.

APPLICATION FILED JULY 6,1914.

1,167,917, Patented Jan. 11, 1916. I

iiiii m WITNESSES nnrrnn snares mam cri ics.

LOGAN WILLARD MULFORD, or Nansen-Tn, mammalian,

SIDEWALK, VAULT-LIGHT, moon-LIGHT, Ann element consrnuctrron. I

To all whom it may concern v Be it known that I, LOGAN l/VILLARD MUL- ronn, a citizen of the United States, residing at Narberth, county of Montgomery, State of Pennsylvania, have invented a new and useful Sidewalk, Vault-Light, Floor-L1ght,

.. and Skylight Construction, of which the following is a specification. y

In sidewalk, vaultlight, fioorlight, and skylight construction, as ordinarily manufactured, considerable ditliculty has arisen and av large amount of expense has been in volved I in replacing the lenses which have become broken or chipped, due tothe unequal expansion and contractionof the different materials of which-the construction is made up, abuse, etc., since it has been necessary to chip out the. broken glasses or lenses before the new lenses can be cemented in position. 1

In accordance with my present invention, I have devised a novel vaultlight and similar construction, wherein a chipped or broken lens may be readily removed by breaking out the same with a hammer or similar'device, and thereafter a new lens may be 'readily'and quickly screwed in posi-' tion. a

With the above and other objects in view,

which will more clearly hereinafter appear in. the detailed description, my invention consists of anovel sidewalk, vaultlight, floorlight, and skylight construction, wherein the lenses may be readily replaced by other lenses of the same size.

It further consists of a novel construction of a lens, a novel construction of a'band, adapted to be placed in threaded engage: ment with said lens, and said band being interlocked with the concrete or other binding material employed, so'that both its upper and lower portions are embedded in the concrete at a desired distance from the upper and lower surfaces of the construction. It further consists of a novel construction of a band, having its bottom portion laterally deflected to form a plurality of flanges, which interlock with the concrete, and prevent the relative rotation of the band with respect to thejconcrete- Specification of e iiie Patented Jan. 19-1 6. Application filed July 6,1914. Seria1 No.8 49,325. T

It'further consists ofothernovelfeatures v? "of construction, all as will be hereinafter;

fully set forth.

V For the purpose, of illustrating myinvention, I have shown in. thefacconipariying ent-preferred by .me, since the samejwill give in practice satsifact'ory and reliable*results, althoughit istoflbe understood that the variousuinstrumentalities of which my invention consists can be-variously arranged and organized and that myinvention is not limited to the precise arrangement and orgamzation of these instrumentalit es, as herein shown and descrlbed.

Figure 1 represents a' bottom plan vie of a portion of a sidewalk, vaultlight, floorlight, and skylight construction, embodying.

my invention. Fig. 2lrepresents a sectional elevation thereof; Fig. 3 "represents a sectional elevation, on an enlarged scale, of a portion thereof. Fig. 4 represents aperspective view ofa band employed. Fig. 5 represents a perspective-view of-one type oflens employed. 7

Similar numerals of reference indicate corresponding parts inthefigures. r 'Referring to the drawings: My present invention is more particularly directed to the novel construction of lens employed and the novel manner of interlocking the same with respect to the lensesor tiles and the concrete, it being understood that .the band is interlocked and positioned in the concrete in such a manner thatwhen a lens has been; removed, it is simplynecessarytoscrew-"a new lens into place, and my inventionisnot 55 drawings one form-thereof which isat pres 7 designates a lens or tile of any desired l or conventional type, but which, in the present instance, I have illustrated as having a smooth outer periphery near its upper end, asv at 8,. a threaded portion 9, and the outer periphery at its lower end is outwardly flared or beveled, as at 10.

. Whenthe parts are to be assembled, a cement or other material 11 is'plaoed around the threads 9 ia'ndthe lens 7 is screwed into the band .4, and in practice, I preferably employa cement, which will remain plastic. Each lens is provided in its bottom face with a rectangular shaped recess 12, in order that a tool may interlocktherewith when the lens is to be inserted in position. In practice, the bars 1 are inserted in'position in the form illustrated, it being understood that cross bars are also employed, the lenses with the bands thereon are supported in alined position, and then the concrete 2 is poured in, so as to interlock with the grooves of the band and'the flanges 6,'so that any movement of such band ispositively prevented, as soon as the concrete is set. Vhen it is desired toinsert a new glass or lens in position, it is simply necessary to knock out the old lens with a hammer, place the plastic cement or other equivalent material around the threads of the new lens, and then screw the same into-position, and thereafter finish the top surface of the concrete around the "lens with. a finishing compound, which will cause a watertight joint to be formed with the lens at such point.

Owing to the "novel construction and er-- rangement of the flanges 6, the concealed band is firmly interlocked with the concrete and is held in such a position that a new lens of the same size as the old lens may be inserted.

It will be seen that the upper portion of the band terminates a desired distance beneath the top face of the completed construction, and the lower portion of the band terminates a desired distance above the bottom face of the construction, so that the band'is entirely'concealed and is not exposed to the elements, so that the durability of the life of the same is largely increased and a waterproof joint can be formedon the tread surfaceof the construction in proximity to the lenses.

l amz aaware-that it has heretofore" been proposed in the patent to Jacobs, No. 488,122, to employ in a vaultlight construction, a band which surrounds the glass, but in such construction, theglass cannot be replaced in the same band and the function of the jacket is entirely different from that of my present invention, since in my device, when it is desired to replace the glass, it is simply necessary to knock out the old glass and screw a new one into position. i

I amalso aware that it has heretofore been proposed to employ a helical wire interlocking with a lens, but in such construction, when it is desired to replace a lens, it is necessary to employ a lens of a smaller size, and as is apparent, my present invention is clearly differentiated from these prior constructions, and to noneof these construe tions ofthe prior art do I make my claim.

It wlll now be'apparent that I have devised a novel and useful construction ofa sidewalk, vaulthght, floorlight and skylight construction, which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description, and while I have, in the present instance, shown and described a preferred embodiment thereof which will give in practice satisfactory and reliable results, it is to beunderstood that the same is susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrific-' ing any of its advantages.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A construction of the character stated, comprising a concrete body, threaded bands terminating within the body below the top and above the bottom thereof and interlocked with the body, the bottom of said bands having a plurality of flanges extending laterally therefrom and interlocked with the concrete, and lenses having threads to engage the threads of said band, and said body being constructed to permit the insertion of'arlens from the under side of the body.

I 2. "Aconstr'uction of the character stated, comprising a concrete body having reinforcements therein, bands interlocked with the body and each consisting of an integral piece of material having portions of its side wall deflected to form threads and having portions cut away at its bottom to form a plurality of flanges which are outwardly deflected and interlocked with the concrete body,the upper ends of said bands terminating beneath the top of said body and the lower ends of said bands terminating above the bottom of said body, lenses having intermediate their ends threads to engage the threads-"of said-bands; plastic cement between said lenses and said bands, the to be inserted into position from the under lower end of a lens havlng an inwardly side of said concrete body. converging side Wall and a portion of said concrete body beneath the flanges of a band LOGAN WILLARD MULFORD forming an inwardly converging side Wall WVitnesses:

with which the converging side Wall of a H. S. FAIRBANKS,

lens engages, and said lenses being adapted C. D. MCVAY,

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

